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Finding the Fourth Proportional to 18,420.60, 27,631.08 and 10,096.08

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Solution

The fourth proportional to 18,420.60, 27,631.08 and 10,096.08 is: 15,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.60 : 27,631.08 = 10,096.08 : x
  2. Step 2: Convert to fraction form
    18,420.60/27,631.08 = 10,096.08/x
  3. Step 3: Cross multiply
    18,420.60x = 27,631.08 × 10,096.08
  4. Step 4: Simplify right side
    18,420.60x = 278,965,594.17
  5. Step 5: Solve for x
    x = 278,965,594.17/18,420.60
  6. Step 6: Final answer
    x = 15,144.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.